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QA1 RCK52403 Rear Pro Coil Shock System, 1979-2004 Mustang

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#721RCK52403

QA1 RCK52403 Rear Pro Coil Shock System, 1979-2004 Mustang

QA1's bolt-in rear coil-over conversion kit enhances your Mustang's suspension with specially designed mounting brackets, adjustable aluminum shocks, and springs.
The kit allows for easy ride height adjustments, enabling up to 2 inches of lowering from the stock height with its fully threaded aluminum body.

$904.95

Factory Shipped

$1,002.53

Save $97.58

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Product Summary

79-04 Ford Mustang, Rear Position, 175 lbs. Spring Rate

QA1's bolt-in rear coil-over conversion kit enhances your Mustang's suspension with specially designed mounting brackets, adjustable aluminum shocks, and springs.
The kit allows for easy ride height adjustments, enabling up to 2 inches of lowering from the stock height with its fully threaded aluminum body.
The 18-way adjustable single-adjustable shocks cater to street-driven cars that also perform on the track, allowing customization between comfort and performance.
The kit includes all necessary hardware for straightforward installation, making it a convenient upgrade for Mustang enthusiasts.
The kit is not compatible with Cobra IRS models, ensuring optimal performance for other Mustang configurations.

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Key Specs

Position	Rear
Spring Rate	175 lbs.
Shock Adjustability	Double Adjustable
Shock Type	Twin Tube
Shock Body Material	Aluminum

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QA1 RCK52403 Details

Improve your Mustang's suspension with QA1's bolt-in rear coil-over conversion kit. This kit includes specially designed mounting brackets, adjustable aluminum shocks, springs, and all necessary hardware.

Ride Height Adjustability

We understand that achieving the perfect stance for your car can be a challenge. That's why we've created a solution that makes it easy to adjust your ride height. QA1 coilovers feature a fully threaded, aluminum body which allows up-to 2” of lowering from stock.

Single-Adjustable Coil-Overs

QA1’s 18-way adjustable single-adjustable shocks are tailored for street-driven cars that also hit the track. With a simple turn of the knob, you can adjust your shocks for a comfortable ride or a more aggressive valving, depending on your needs.

EASY, BOLT-IN INSTALLATION

Our commitment to thoughtful product design is evident in every product we produce, to deliver the highest level of performance, while ensuring trouble-free compatibility.

MADE IN THE USA

QA1 coilovers are proudly made in Lakeville, Minnesota.

FITMENT NOTES

Does not fit Cobra IRS

Guides & Documents

Coilovers Installation Instructions (721RCK52403)

Warranty (QA1)

Technical Information (QA1)

CA WARNING:

Can expose you to lead, a carcinogen and reproductive toxicant. See www.P65Warnings.ca.gov

QA1 RCK52403 Specifications

KEY SPECS
MFG. Part #	RCK52403
Brand	QA1
Position	Rear
Spring Rate	175 lbs.
Shock Adjustability	Double Adjustable
Shock Type	Twin Tube
Shock Body Material	Aluminum
Upper Shock Mount	Bushed Eyelet
Lower Shock Mount	Bushed Eyelet
Height Adjustable	Yes
Finish	Polished

GENERAL
Compressed Length	11.63"
Extended Length	16.88"
Number of Valving Selections	18
Coilover Springs Included	Yes
Bushing Material	Polyurethane
Sold in Quantity	Pair
Hardware Included	Yes
Crossmember Included	No
Welding Required	No
Gas Charged	No
Suspension Height Adjustment	0.0-2.0 Inch Lowered
Spring Finish	Powder Coated
Notes	Will not fit Cobra Independent Rear Suspension(IRS).
GTIN Code	806990174482
Adjustable Valving	Yes
Adjustable Mounting Bracket Included	No
Bushing Color	Black
Lower Mount	Eyelet
Upper Mount	Eyelet
Shocks Included	Yes

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what's the lb weight

by kk

• a year ago

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Fitment

1979-2004 Ford Mustang